Answers are grounded in this paper and cite their sources.
We discuss the prospects for a consistent, nonlinear, partially massless (PM), gauge symmetry of bimetric gravity (BMG). Just as for single metric massive gravity, we show that consistency of BMG relies on it having a PM extension; we then argue that it cannot.
No takes yet. Share an insight, caveat, or question.
Deser et al. (2013) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: